This deal has ended.
Through 12/31, Overstock again has one of their most popular (4.6 of 5; 93% recommended to friend from 209 people) duvet sets, an Egyptian Cotton 400-thread Count Duvet Cover Set, for only $53.99 after this 10% off coupon (there is also a 12% off coupon for new customers). The popularity is key, as many sheets and covers sold online are over-hyped. Plus, shipping is currently free (normally $2.95) and there is no sales tax (except UT, IN). Nine colors are available in three sizes.